1. Thermodynamics and Energetics Laboratory
Aerospace & Mechanical Engineering Department
Université de Liège
Prof. Vincent Lemort
Assistant professor
Lab’InSight « Biomass to Energy » -
CTA, December 11th 2012»
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2. FIELDS OF EXPERTISE AND
INDUSTRIAL TARGETS
Fields of Expertise
• Large experience with thermal/thermodynamics systems
• Development of modeling and simulation tools
• Long tradition of experimental studies
• Monitoring of energy systems
Industrial application fields
• Innovative CHP systems (external combustion engines)
• Organic Rankine cycle systems
• Positive displacement machines
• Biomass CHP plants
• (Waste heat recovery)
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3. CENTRALIZED POWER PRODUCTION
→ Simulation and optimization of biomass CHP plants
→ Integration of biomass CHP plants in District Heating Networks
Simulation and optimization of the
biomass chp plant of the Ulg Campus
(Sart-Tilman).
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4. CENTRALIZED POWER PRODUCTION
Performance Monitoring of Power plants
→ Real time estimation of performance parameters
→ Processing of transient data
→ Identification of faulty sensors
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5. DISTRIBUTED POWER PRODUCTION
Organic Rankine Cycle heat engines
Waste heat recovery or renewable
energies: solar, biomass, geothermal
Electricity
/mechanical
ORC 1.1 MWe in Austria (Turboden)
power
ORC efficiency: 15-19%
Hot water production at 90°C
Heat (heating demand) 5
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6. DISTRIBUTED POWER PRODUCTION
→ Investigation of positive displacement expanders
 Scroll, screw, piston,…
 Design optimization, experimentation
→ Optimization of the cycle architecture
→ Selection of the working fluid
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→ Control of ORC systems
Expander isentropic efficency [%]
75
70
65 2000 rpm
(12 bar)
60 2500 rpm
(12 bar)
55 3000 rpm
(12 bar)
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2.5 3.5 4.5 5.5 6.5 7.5
Pressure ratio [-]
Performance of a prototype of scroll expander
developped in the laboratory
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7. DISTRIBUTED POWER PRODUCTION
Ericsson heat engines
→ External heat engine used for CHP
→ Prototype under construction
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8. SERVICES PROVIDED TO COMPANIES
Experimental work
→ Design and construction of experimental setups
→ Analysis of experimental data
→ Monitoring of energy systems
Modeling & Simulation
→ Improve energy performance of systems:
design, integration and control of components
→ Development/adaptation of our model library to our partners’ needs
Infrastructures
→ Compressor test rigs; 2 climatic + calorimetric chambers (HVAC
equipments); 1 Mobile air-conditioning test rig; 2 Organic Rankine
cycles; 1 Chassis dynamometer; Gas, fueloil and pellet boilers
Figures
Staff: 30; Annual turnover of ~ 1 million €
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9. LABORATORY CONTACT INFORMATION
UNIVERSITE DE LIEGE / Aerospace & Mechanical
Engineering Department
Thermodynamics and Energtic Laboratory
Campus du Sart Tilman, B49
B-4000 Liège
www.labothap.ulg.ac.be
Prof. Vincent Lemort
Chargé de cours
Vincent.lemort@ulg.ac.be - Phone : +32 485 20 82 81
Prof. Pierre Dewallef
Chargé de cours
p.dewallef@ulg.ac.be - Phone : +32 4 366 99 95
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